mingw-pcre/pcre-8.36-Fix-bug-when-there-are-unset-groups-prior-to-ACCEPT-.patch

72 lines
2.0 KiB
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From e2eeaf85f1b5d6c4669b621d309ff904cbf96f4b Mon Sep 17 00:00:00 2001
From: ph10 <ph10@2f5784b3-3f2a-0410-8824-cb99058d5e15>
Date: Wed, 5 Nov 2014 15:08:03 +0000
Subject: [PATCH] Fix bug when there are unset groups prior to (*ACCEPT) within
a capturing group.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1510 2f5784b3-3f2a-0410-8824-cb99058d5e15
Signed-off-by: Petr Písař <ppisar@redhat.com>
Petr Pisar: Ported to 8.36
diff --git a/pcre_exec.c b/pcre_exec.c
index 654eb9e..fdf7067 100644
--- a/pcre_exec.c
+++ b/pcre_exec.c
@@ -1474,7 +1474,18 @@ for (;;)
md->offset_vector[offset] =
md->offset_vector[md->offset_end - number];
md->offset_vector[offset+1] = (int)(eptr - md->start_subject);
- if (offset_top <= offset) offset_top = offset + 2;
+
+ /* If this group is at or above the current highwater mark, ensure that
+ any groups between the current high water mark and this group are marked
+ unset and then update the high water mark. */
+
+ if (offset >= offset_top)
+ {
+ register int *iptr = md->offset_vector + offset_top;
+ register int *iend = md->offset_vector + offset;
+ while (iptr < iend) *iptr++ = -1;
+ offset_top = offset + 2;
+ }
}
ecode += 1 + IMM2_SIZE;
break;
diff --git a/testdata/testinput1 b/testdata/testinput1
index 123e3d3..091e307 100644
--- a/testdata/testinput1
+++ b/testdata/testinput1
@@ -5720,4 +5720,7 @@ AbcdCBefgBhiBqz
/[\Q]a\E]+/
aa]]
+/(?:((abcd))|(((?:(?:(?:(?:abc|(?:abcdef))))b)abcdefghi)abc)|((*ACCEPT)))/
+ 1234abcd
+
/-- End of testinput1 --/
diff --git a/testdata/testoutput1 b/testdata/testoutput1
index 5e71900..ba7ca37 100644
--- a/testdata/testoutput1
+++ b/testdata/testoutput1
@@ -9411,4 +9411,13 @@ No match
aa]]
0: aa]]
+/(?:((abcd))|(((?:(?:(?:(?:abc|(?:abcdef))))b)abcdefghi)abc)|((*ACCEPT)))/
+ 1234abcd
+ 0:
+ 1: <unset>
+ 2: <unset>
+ 3: <unset>
+ 4: <unset>
+ 5:
+
/-- End of testinput1 --/
--
1.9.3